Statistic | EC | TDS | TH |
| Cl− |
| Na+ | Ca2+ | Mg2+ | K+ | CWQI-OBS |
No. of observations | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 |
Minimum | 155.0 | 97.0 | 60.0 | 44.8 | 17.3 | 6.9 | 13.4 | 15.9 | 5.6 | 1.4 | 58.2 |
Maximum | 848.0 | 548.0 | 360.0 | 436.4 | 190.2 | 101.0 | 115.2 | 80.1 | 41.0 | 4.3 | 91.8 |
Range | 693.0 | 451.0 | 300.0 | 391.6 | 172.8 | 94.1 | 101.8 | 64.2 | 35.4 | 2.9 | 33.6 |
1st Quartile | 327.5 | 209.0 | 116.5 | 77.1 | 29.6 | 17.9 | 23.9 | 31.1 | 9.2 | 1.8 | 82.9 |
Median | 417.0 | 265.5 | 144.5 | 111.4 | 39.9 | 24.4 | 32.0 | 40.1 | 15.1 | 2.0 | 84.6 |
3rd Quartile | 588.5 | 379.3 | 183.8 | 191.7 | 57.1 | 39.9 | 46.0 | 51.9 | 17.4 | 2.9 | 89.1 |
Mean | 461.0 | 292.8 | 162.0 | 154.2 | 52.6 | 32.5 | 40.3 | 42.1 | 15.4 | 2.3 | 84.6 |
Variance (n) | 35013.1 | 14187.8 | 5015.3 | 10825.9 | 1507.2 | 485.4 | 569.7 | 239.2 | 65.8 | 0.6 | 44.8 |
Standard deviation (n) | 187.1 | 119.1 | 70.8 | 104.0 | 38.8 | 22.0 | 23.9 | 15.5 | 8.1 | 0.8 | 6.7 |
Skewness (Pearson) | 0.5 | 0.5 | 1.1 | 1.2 | 2.2 | 1.4 | 1.4 | 0.5 | 1.3 | 0.8 | −2.0 |
Kurtosis (Pearson) | −0.8 | −0.7 | 0.8 | 0.3 | 4.4 | 1.4 | 1.5 | −0.2 | 1.4 | −0.4 | 5.4 |
Standard error of the mean | 33.6 | 21.4 | 12.7 | 18.7 | 7.0 | 4.0 | 4.3 | 2.8 | 1.5 | 0.1 | 1.2 |